1 Explain that a population pyramid shows the age and sex structure of a population. 2  Point to the horizontal bars, which show the percentage (or the absolute number) of males and females in each age group. 3  Have students interpret the chart.
1 Although they range from $150-$400 or more, a large capacity (25-70 pints) dehumidifier for a basement (the dampest portion of most homes) or other large area averages $200-$300.
Set up your dehumidifier in the most humid room. The rooms that usually hold the most moisture are bathrooms, laundry rooms, and basements. These are the most typical places to install a dehumidifier. Dehumidifiers can also be used on a boat while the boat is moored to a dock.